Spending two months planning the outrageous stunt, Mr Auer also designed and made the monster skates, which took him a total of 110 hours' work.

Mr Auer, from Gross-Gerau near Frankfurt, is considered to be the most extreme in-line skater in the world.

He already holds the world record for reaching speeds of 190mph as he was dragged along behind a Porsche GT2.

Travelling at speeds up to 56mph, Auer skated the entire length of the roller coaster - 860 metres (~2820 feet) - in just over a minute.

Nice one, Dirk, but I could have done it in under a minute. BECAUSE I WOULDN'T USE THE BRAKES. Brakes, like crash helmets, are for unprofessionals and children. Did I? I did -- consider the gauntlet thrown! Now, take off those silly skates and fight like a man.